Evacal tsblet is used to treat adequate supply of calcium to bones.It contains Calcium,Vitamin D(calcitriol) and Magnesium. Role of key ingredients: Calcium ensures the adequate supply of calcium to bones. It may be used to treat conditions caused by low calcium levels such as breaking of bones. Vitamin D helps the body absorb calcium and phosphorus. Having the right amounts of Vitamin D, Calcium, and Phosphorus is important for building and keeping strong bones. Magnesium is used for bone matrix formation. Evacal is a nutritional supplement which can be taken by people who have low levels of calcium in their blood.Evacal is used in elderly people to keep bones healthy and strong, and is even effective in Chronic arthritis and Osteoporosis. Use under medical supervision.